Perhaps you should try some spelling variations:
"its colonization history" » "its communication history", "its organization history", "its cooperation history", "anti colonization history", "jews colonization history", "mars colonization history"
"_ decolonization work" » "_ colonization work", "_ decolonization notes", "_ decolonization _", "decolonization _ work"
"pro communication iraq" » "pro communication iran", "pro communication israel", "pro communication italy", "prone communication iraq", "ngo communication iraq", "proper communication iraq"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("its colonization history") or ("pro communication iraq"))) or ("_ decolonization work"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("its colonization history") OR ("pro communication iraq"))) OR ("_ decolonization work")).
• Removing quotes may allow a broader search: (((( its colonization history ) or ( pro communication iraq ))) or ( _ decolonization work )).
• Adding a wildcard symbol may retrieve word variants: (((("its colonization history") or ("pro communication iraq"))) or ("_ decolonization work"))*.